4.0.0 - 2014.1.0 - Icehouse Release

Updated Modulefile and README.md for 4.0.0 release.

Change-Id: If2b460aa971fb29b426298d8b70ab2099690059d
Merge "4.0.0 - 2014.1.0 - Icehouse Release"
Update puppetlabs-rabbitmq dependency

Cinder can now use puppetlabs-rabbitmq < 4. Updated the dependency
to reflect this change.

Change-Id: I3ee14ae7b3535ce2e58dc05594fc141bd013daa1